1990 Chevrolet S10 Service and Repair Manual

This factory service and repair manual for the 1990 Chevrolet S10 narrows the trim list to Base, Durango and Tahoe over two pickup bodies, the standard cab and the extended cab. The engine bay is unchanged in substance: a 2.5-liter overhead-valve four of 151 cubic inches, a 2.8-liter V6 of 173 and the 4.3-liter V6 of 262, each naturally aspirated and fueled by gasoline. The manual treats them separately where they differ and together where the chassis, brake and body sections apply to all three alike.

Engines covered

• 2.8L V6 (173 cu in) — OHV, naturally aspirated, gasoline
• 4.3L V6 (262 cu in) — OHV, naturally aspirated, gasoline
• 2.5L inline-four (151 cu in) — OHV, naturally aspirated, gasoline

Body styles covered

• 2-door standard cab pickup
• 2-door extended cab pickup

Trims covered

• Base
• Durango
• Tahoe

Known issues on the 1990 S10. Owners of the 1990 S10 have logged 32 complaints, and the brakes lead them with ten, ahead of five on the engine and cooling system and four on the fuel system. Those three areas are where this manual does its heaviest work: hydraulic brake bleeding, wear limits and pedal diagnosis, cooling system pressure and thermostat testing, and fuel delivery and pressure diagnostics, each with the torque values and wiring references needed to complete the repair rather than only identify it.